vasilito
b9874d0941
Add redbear-usb-storage-check in-guest binary that validates USB mass storage read and write I/O: discovers /scheme/disk/ devices, writes a test pattern to sector 2048, reads it back, verifies match, restores original content. Updates test-usb-storage-qemu.sh with write-proof verification step. Includes all accumulated Red Bear OS work: kernel patches, relibc patches, driver infrastructure, DRM/GPU, KDE recipes, firmware, validation tooling, build system hardening, and documentation.
32 lines
737 B
C
32 lines
737 B
C
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
|
|
#include "test_helpers.h"
|
|
|
|
int main(void) {
|
|
// Lose our fd and pull it again
|
|
{
|
|
int fd = creat("fcntl.out", 0777);
|
|
ERROR_IF(creat, fd, == -1);
|
|
UNEXP_IF(creat, fd, < 0);
|
|
}
|
|
|
|
int newfd = open("fcntl.out", 0);
|
|
ERROR_IF(open, newfd, == -1);
|
|
UNEXP_IF(open, newfd, < 0);
|
|
|
|
int newfd2 = fcntl(newfd, F_DUPFD, 0);
|
|
// TODO: The standard doesn't define errors for F_DUPFD
|
|
|
|
printf("duped fd is %d greater than the original fd\n", newfd2 - newfd);
|
|
|
|
int c1 = close(newfd);
|
|
ERROR_IF(close, c1, == -1);
|
|
UNEXP_IF(close, c1, != 0);
|
|
|
|
int c2 = close(newfd2);
|
|
ERROR_IF(close, c2, == -1);
|
|
UNEXP_IF(close, c2, != 0);
|
|
}
|